<template>
  <div>
    <div style="margin: 10px 0">
      <el-input style="width: 200px;margin-right: 5px;margin-bottom: 5px" suffix-icon="el-icon-search" placeholder="请输入名称" v-model="username"></el-input >
      <el-input style="width: 200px;margin-right: 5px" suffix-icon="el-icon-message" placeholder="请输入邮箱" v-model="email"></el-input >
      <el-input style="width: 200px;margin-right: 5px" suffix-icon="el-icon-position" placeholder="请输入地址" v-model="address"></el-input >
      <el-button type="primary" @click="load">搜索</el-button>
      <el-button type="warning" @click="reset">重置</el-button>
    </div>

    <div style="margin: 10px 0">
      <el-button type="primary" style="background-color: #42b983" @click="handleAdd">新增<i class="el-icon-circle-plus-outline" style="margin-left: 5px"></i></el-button>
      <el-popconfirm
          style="margin-left: 5px"
          confirm-button-text='确定'
          cancel-button-text='我再想想'
          icon="el-icon-info"
          icon-color="red"
          title="您确定批量删除这些数据吗？"
          @confirm="delBatch"
      >
        <el-button type="danger" slot="reference">批量删除 <i class="el-icon-remove" style="margin-left: 5px"></i></el-button>
      </el-popconfirm>
      <el-upload
          action="http://localhost:9090/user/import"
          :show-file-list="false"
          accept="xlsx"
          :on-success="handleImportSuccess"
          style="display: inline-block">
        <el-button type="primary" style="margin-left: 5px" >导入<i class="el-icon-bottom" style="margin-left: 5px"></i></el-button>
      </el-upload>
      <el-button type="primary" @click="daochu" style="margin-left: 5px">导出<i class="el-icon-top" style="margin-left: 5px"></i></el-button>

    </div>

    <el-table :data="tableData" border stripe :header-cell-class-name="headerBg" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55"  ></el-table-column>
      <el-table-column prop="id" label="ID" width="80"></el-table-column>
      <el-table-column prop="username" label="用户名" width="140"></el-table-column>
      <el-table-column prop="nickname" label="昵称" width="120"></el-table-column>
      <el-table-column prop="role" label="角色" ></el-table-column>
      <el-table-column prop="email" label="邮箱"></el-table-column>
      <el-table-column prop="phone" label="电话号码"></el-table-column>
      <el-table-column prop="address" label="地址"></el-table-column>

      <!--编辑、删除操作-->
      <el-table-column label="操作">
        <template slot-scope="scope">
          <el-button type="warning" @click="handleEdit(scope.row)">编辑 <i class="el-icon-edit"></i></el-button>
          <el-popconfirm
              style="margin-left: 5px"
              confirm-button-text='确定'
              cancel-button-text='我再想想'
              icon="el-icon-info"
              icon-color="red"
              title="您确定删除吗？"
              @confirm="handleDelete(scope.row.id)"
          >
            <el-button type="danger" slot="reference">删除 <i class="el-icon-delete"></i></el-button>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>

    <!--分页区-->
    <div style="padding: 10px 0">
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-sizes="[2, 5, 10, 20]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </div>

    <!--新建、编辑表单-->
    <el-dialog title="用户信息" :visible.sync="dialogFormVisible" width="30%">
      <el-form label-width="80px" size="small">
        <el-form-item label="用户名">
          <el-input v-model="form.username" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="昵称">
          <el-input v-model="form.nickname" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="角色">
          <el-input v-model="form.role" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="邮箱">
          <el-input v-model="form.email" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="电话">
          <el-input v-model="form.phone" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="地址">
          <el-input v-model="form.address" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>

      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>

  </div>
</template>

<script>

export default {
  name: "User",
  data(){
    return{
      tableData:[],
      total:0,
      pageNum:1,
      pageSize:5,
      username:'',
      email:'',
      address:'',
      form:{},
      multipleSelection: [],
      dialogFormVisible:false,
      headerBg:'headerBg',
    }
  },
  methods:{

    //#region (搜索、重置)
    //  请求页面查询数据
    async load(){
      let res=await this.request.get("/user/page",{
        params:{
          pageNum:this.pageNum,
          pageSize:this.pageSize,
          username:this.username,
          email:this.email,
          address:this.address
        }
      })
      this.tableData=res.data.records
      this.total=res.data.total
    },
    //重置搜索框
    reset(){
      this.username=''
      this.email=''
      this.address=''
      this.load()
    },
    //#endregion
    
    
    //#region (新增、批量删除、导入、导出、编辑、删除)
    //点击新增按钮触发事件
    handleAdd(){
      this.dialogFormVisible=true
      this.form={}
    },
    //点击表单提交按钮(新增用户or修改信息)确定事件
    async save(){
      let res=await this.request.post("/user",this.form)
      if(res.data){
        this.$message.success("添加成功！")
        this.dialogFormVisible=false
        this.load()
      }else{
        this.$message.error("添加失败")
      }
    },
    //点击编辑按钮触发事件
    handleEdit(row){
      console.log(row)
      this.dialogFormVisible=true
      this.form=row
    },
    //点击删除按钮触发事件
    async handleDelete(id){
      let res=await this.request.delete("/user/"+id)
      if(res.data){
        this.$message.success("删除成功！")
        this.load()
      }else{
        this.$message.error("删除失败！")
      }
    },
    //多选框删除事件
    handleSelectionChange(val){
      this.multipleSelection=val
    },
    //批量删除
    async delBatch(){
      let ids=this.multipleSelection.map(v=>v.id)
      let res=await this.request.post("/user/del/batch",ids)
      if(res.data){
        this.$message.success("批量删除成功！")
        this.load()
      }else{
        this.$message.error("批量删除失败！")
      }
    },
    //导入成功时
    handleImportSuccess(){
      this.$message.success('文件导入成功！')
      this.load()
    },
    //导出
    daochu(){
      window.open("http://localhost:9090/user/export")
    },
    //#endregion


    //#region (分页)
    //分页(一页能容纳的最大数据多少条)
    handleSizeChange(pageSize){
      this.pageSize=pageSize
      this.load()
    },
    //分页(点击跳到多少页)
    handleCurrentChange(pageNum){
      this.pageNum=pageNum
      this.load()
    }
    //#endregion
  },

  created() {
    this.load()
  }
}
</script>

<style scoped>
.headerBg{
  background: #eee!important;
}
</style>